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Samut Sakhon, Thailand

Samut Sakhon observes Indochina Time at UTC+7 throughout the year. Its coastal, urban, and inland communities share one clock, while daily sunrise depends on the season and the observer’s precise position.

Krathum Baen, Thailand

Saturday, 5 September 2026

UTC+7 · Asia/Bangkok

Time and sun data for Krathum Baen — the largest city of Samut Sakhon

The sun in Krathum Baen

Sunrise 6:09 AM Solar noon 12:19 PM Sunset 6:29 PM Daylight 12 h 21 min Night 11 h 39 min Civil twilight 5:47 AM – 6:51 PM

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Current time in Samut Sakhon, Thailand

The province uses the Asia/Bangkok time-zone setting found across Thailand. There is no daylight saving transition, so clocks neither jump forward nor fall back. Samut Sakhon lies southwest of Bangkok and is closely linked with the capital region. Travelling between the two does not require resetting a watch. The relevant difference for a journey is travel duration, not time-zone arithmetic. In Samut Sakhon, the tide may turn; the UTC offset does not.

Mahachai and other provincial centres

Samut Sakhon city is commonly known as Mahachai, a name frequently encountered in transport information and everyday use. Both names refer to the same principal provincial centre for time-search purposes.

Notable centres across the province include: Samut Sakhon, or Mahachai, the provincial capital Krathum Baen, an important inland urban and district centre Ban Phaeo, the centre of the province’s western district

Om Noi, a municipality near the Bangkok metropolitan edge Na Di, part of the developed area around the capital district A ranking can change according to whether it compares municipalities, districts, or uninterrupted urban development. Om Noi, for example, belongs to a wider metropolitan landscape that administrative statistics may divide differently. None of those boundary choices affects local civil time.

Reading the sunrise forecast

Sunrise near Mahachai should be checked for the actual date of interest. Its clock time moves through the year even though UTC+7 stays fixed. A result calculated for Bangkok may be close, but a Samut Sakhon location is preferable when precision matters.

The coast offers broad horizons in some places, yet buildings, mangroves, trees, haze, and clouds may change what an observer sees. Calculated sunrise assumes a standard horizon and describes an astronomical event rather than guaranteed visibility.

For morning travel or photography: Search under both Samut Sakhon and Mahachai if necessary. Select the closest available locality. Separate the time of first light from sunrise itself. Check weather and access conditions independently.

Civil twilight occurs before sunrise and may provide enough light for movement or setup. Anyone needing darkness should consult twilight information, not infer it solely from the sunrise entry. Anyone needing direct sunlight should also account for local obstructions.

Questions and answers

What is the UTC offset in Samut Sakhon?
The province uses UTC+7.
Are Mahachai and Samut Sakhon on different clocks?
No. Mahachai is a commonly used name for the provincial capital, and both references use the same local time.
Does coastal weather alter sunrise time?
Weather changes visibility, not the calculated astronomical time. Cloud or haze may prevent the Sun from being seen at the listed minute.
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